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2. 发明公开

EP1857788A1 ELECTRONIC BALANCE WITH WINDSHIELD 有权
标题翻译： ELEKTRONISCHE WAIT MIT WINDSCHUTZSCHEIBE
公开(公告)号：EP1857788A1
公开(公告)日：2007-11-21
申请号：EP06712980.9
申请日：2006-02-03
申请人： Shimadzu Corporation
发明人： HAMAMOTO, HIROSHI , SHIMAUCHI, KUNIO
IPC分类号： G01G21/30 , G01G21/28 , G01G23/37
CPC分类号： G01G21/30 , G01G21/286 , G01G23/48
摘要： [PROBLEMS] To obtain a stable measurement result in both a measuring-out mode and normal mode, and to obtain a weight value eliminating the influence of convection in the windshield.
[MEANS FOR SOLVING PROBLEMS] An electronic balance with a windshield 51, the windshield surrounding a measuring pan 53 and having an openable/closable door 52, for averaging measurement data in a response time and obtaining a weight value based on it, the electronic balance including: a door open/close detection sensor 3 for detecting an open/close of the door 52; and a mode changer for switching the measurement mode between a measuring-out mode in which the response time is relatively short when the door 52 is open, and a normal mode in which the response time is relatively long when the door 52 is closed. In addition, in a convection time measurement mode, a convection time period since the door is closed with no sample on the measuring pan 53 until the fluctuation of the measurement data is settled down within a predetermined range is measured and memorized. After the memorized convection time has passed after a sample was put on the measuring pan 53 and the door 52 was closed in a normal measurement mode, the measurement data is averaged in a predetermined response time and the weight value is calculated.
摘要翻译：为了在测量输出模式和正常模式两者中获得稳定的测量结果，并获得减轻挡风玻璃对流影响的重量值。用于解决问题的手段具有挡风玻璃51的电子天平，挡风玻璃围绕测量盘53并具有可打开/关闭的门52，用于在响应时间内对测量数据进行平均并基于此获得重量值，电子天平包括：用于检测门52的打开/关闭的门打开/关闭检测传感器3; 以及用于在门52打开时响应时间相对短的测量模式和门52关闭时响应时间相对较长的正常模式切换测量模式的模式更换器。此外，在对流时间测量模式中，测量并记忆自从门在关闭测量盘53上没有样品直到测量数据的波动在预定范围内稳定之前关闭的对流时间段。在将样品放入测量盘53并且门52以正常测量模式关闭之后经过存储的对流时间之后，在预定响应时间内对测量数据进行平均，并计算重量值。

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